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Category: Mechanics

If-T-2pi-L-g-1-2-and-L-100-0-1-cm-limit-standard-error-T-2-01-0-01-s-limit-standard-error-Calculate-the-value-of-g-and-its-standard-error-

Question Number 28929 by NECx last updated on 01/Feb/18 $${If}\:{T}=\mathrm{2}\pi\left(\frac{{L}}{{g}}\right)^{\frac{\mathrm{1}}{\mathrm{2}\:}} \:{and} \\ $$$${L}=\mathrm{100}\pm\mathrm{0}.\mathrm{1}\:{cm}\left({limit}\:{standard}\:\right. \\ $$$$\left.{error}\right) \\ $$$${T}=\mathrm{2}.\mathrm{01}\pm\mathrm{0}.\mathrm{01}\:{s}\:\left({limit}\:{standard}\right. \\ $$$$\left.{error}\right) \\ $$$${Calculate}\:{the}\:{value}\:{of}\:{g}\:{and}\:{its} \\ $$$${standard}\:{error}. \\ $$…

Question-28835

Question Number 28835 by ajfour last updated on 30/Jan/18 Commented by ajfour last updated on 30/Jan/18 $${One}\:{sphere}\:{over}\:{another},\:{the} \\ $$$${two}\:{confined}\:{between}\:{ground} \\ $$$${and}\:{two}\:{inclined}\:{walls}. \\ $$$${Find}\:{contact}\:{force}\:{at}\:{each}\:{contact} \\ $$$${point}\::\:\left({Assume}\:{surfaces}\:{frictionless}\right).…

Question-28709

Question Number 28709 by Tinkutara last updated on 29/Jan/18 Answered by ajfour last updated on 29/Jan/18 $${lets}\:{say}\:{v}_{\mathrm{0}} '\:={u}\:>\:{v}_{\mathrm{0}} \:\left({just}\:{to}\:{imagine}\right) \\ $$$${As}\:{block}\:{climbs}\:{up}\:{along} \\ $$$${vertical}\:{surface}\:{of}\:{sledge}, \\ $$$${after}\:{the}\:{bend}\:{both}\:{sledge}\:{and}…

A-man-pushes-a-box-of-40kg-up-an-incline-plane-of-15-if-the-man-applies-a-horizontal-force-of-200N-and-the-box-moves-up-the-plane-a-distance-of-20m-at-a-constant-velocity-and-the-coefficient-of-frict

Question Number 28644 by NECx last updated on 28/Jan/18 $${A}\:{man}\:{pushes}\:{a}\:{box}\:{of}\:\mathrm{40}{kg}\:{up} \\ $$$${an}\:{incline}\:{plane}\:{of}\:\mathrm{15}°,{if}\:{the}\:{man} \\ $$$${applies}\:{a}\:{horizontal}\:{force}\:{of} \\ $$$$\mathrm{200}{N}\:{and}\:{the}\:{box}\:{moves}\:{up}\:{the} \\ $$$${plane}\:{a}\:{distance}\:{of}\:\mathrm{20}{m}\:{at}\:{a} \\ $$$${constant}\:{velocity}\:{and}\:{the} \\ $$$${coefficient}\:{of}\:{friction}\:{is}\:\mathrm{0}.\mathrm{10}, \\ $$$${find}\: \\…

An-object-of-mass-24kg-is-accelerated-up-a-frictionless-plane-inclined-at-an-angle-of-37-Starting-at-the-bottom-from-the-rest-it-covers-a-distance-of-18m-in-3secs-a-what-is-the-average-power-requir

Question Number 28646 by NECx last updated on 28/Jan/18 $${An}\:{object}\:{of}\:{mass}\:\mathrm{24}{kg}\:{is} \\ $$$${accelerated}\:{up}\:{a}\:{frictionless}\:{plane} \\ $$$${inclined}\:{at}\:{an}\:{angle}\:{of}\:\mathrm{37}°. \\ $$$${Starting}\:{at}\:{the}\:{bottom}\:{from}\:{the} \\ $$$${rest},{it}\:{covers}\:{a}\:{distance}\:{of}\:\mathrm{18}{m} \\ $$$${in}\:\mathrm{3}{secs}. \\ $$$$\left.{a}\right){what}\:{is}\:{the}\:{average}\:{power} \\ $$$${required}\:{to}\:{accomplish}\:{the} \\…

Question-28585

Question Number 28585 by Tinkutara last updated on 27/Jan/18 Answered by ajfour last updated on 27/Jan/18 $${collision}\:{for}\:{m}_{\mathrm{1}} \:{is}\:{elastic}. \\ $$$${after}\:{collision},\:{velocity}\:{of}\:{m}_{\mathrm{1}} \\ $$$${is}\:{reversed};\:{kinetic}\:{energy}\: \\ $$$${is}\:{regathered}\:{as}\:{spring}\:{comes}\:{to} \\…

Question-28339

Question Number 28339 by Tinkutara last updated on 24/Jan/18 Answered by mrW2 last updated on 24/Jan/18 $${when}\:{the}\:{ring}\:{is}\:{released},\:{it}\:{falls}\:{down} \\ $$$${with}\:{the}\:{max}.\:{acceleration}\:\left({g}\right).\:{due}\:{to} \\ $$$${the}\:{increasing}\:{vertical}\:{component}\:{of} \\ $$$${the}\:{force}\:{in}\:{the}\:{string},\:{the}\:{acceleration} \\ $$$${of}\:{the}\:{ring}\:{decreases}.\:…